A pair of high-tech Army blimps is coming to the greater Washington, DC area, and soon they will be able to provide the military with surveillance powers that spans hundreds of millions of acres from North Carolina to Niagara Falls, Canada.

The airships are part of Raytheon’s Joint Land Attack Cruise Missile Defense Elevated Netted Sensor System, or JLENS, and when all is said and done they’ll offer the United States military what the defense contractor calls “an affordable elevated, persistent over-the-horizon sensor system” that relies on “a powerful integrated radar system to detect, track and target a variety of threats.”

Raytheon has just wrapped up a six-week testing period in the state of Utah and is now sending its JLENS fleet to the Aberdeen Proving Ground in Maryland. Once there, the Army intends to get some hands-on experience that will eventually culminate in launching the pair of airships over Washington, DC.